Hello,

You atleast could have tried to complete the registration process before the ending of the deadlines. It is expected that the deadlines won't be extended further so at this point there is a high probability that you will not get your admit card.

I am providing you with a link where you will find contact details of admins based on your region of residence. Contact/ mail them and inform about your issues as soon as possible.

http://jeeadv.ac.in/contact.php

Hope this helps you.